How to plan, budget, and manage rehab projects from demolition to final inspection — with real cost benchmarks and a sample budget.
The renovation is where most flippers make or lose their profit. A well-managed rehab stays on budget and on schedule. A poorly managed one bleeds money through scope creep, contractor delays, permit issues, and surprise repairs. This guide covers the entire renovation process — from pre-purchase inspection through final walkthrough — so you can manage your rehab like a professional, even on your first flip.
Before you buy the property, you need a clear picture of what you are getting into. Hire a licensed home inspector ($400 to $600) for a general inspection, plus specialty inspections as needed.
The inspection results feed directly into your renovation scope and budget. Do not skip this step to save money — a $1,500 investment in thorough inspections can prevent $20,000 or more in surprise costs.
The scope of work (SOW) is the single most important document in your renovation. It is a detailed, room-by-room list of every task to be completed, every material to be used, and every finish to be installed. A good SOW eliminates ambiguity and prevents the "I thought you meant..." conversations that lead to change orders and cost overruns.
Your SOW should include:
Write the SOW before you solicit contractor bids. Every contractor should bid on the same scope so you can make apples-to-apples comparisons.
Get at least three bids for the full scope of work. Provide each contractor with the same written SOW and walk the property with them individually. A proper bid should include:
Be wary of bids that are significantly lower than the other two — the contractor may be cutting corners, underestimating the scope, or planning to make up the difference through change orders.
Pull all required permits before any work begins. Permits are typically required for:
Permit costs vary widely by jurisdiction — from $200 for a simple electrical permit to $5,000 or more for a full renovation permit package. Budget $1,000 to $3,000 for permits on a typical flip. The time to pull permits ranges from same-day in some counties to 4 to 6 weeks in major cities. Factor permit timelines into your project schedule.
Never skip permits. If unpermitted work is discovered during the buyer's inspection or appraisal, it can kill the sale, require expensive remediation, or expose you to liability.
Demolition is the first physical phase of the renovation. Remove everything that will be replaced: old flooring, cabinets, countertops, fixtures, drywall as needed, and any materials flagged during inspection (mold-damaged wood, asbestos-containing materials).
Important demolition considerations:
Address any structural issues before proceeding to mechanical systems. This includes foundation repairs, framing modifications (removing walls, adding beams and headers), roof repairs or replacement, and subfloor replacement.
Structural work is typically the most expensive category when it is needed. Common costs:
Once structural work is complete, the rough mechanical trades come in. This is called "rough-in" because the work happens inside the walls before drywall goes up.
Plumbing rough-in: New supply lines, drain lines, fixture placement, water heater installation or replacement. Typical costs: $3,000 to $8,000 for a repipe, $1,500 to $3,000 for water heater replacement.
Electrical rough-in: Panel upgrade, new circuits, outlet and switch placement, recessed lighting layout, smoke and CO detector wiring. Typical costs: $2,000 to $5,000 for a panel upgrade, $3,000 to $10,000 for a full rewire.
HVAC: System replacement, ductwork modification, register placement. Typical costs: $4,000 to $10,000 for a full system replacement, $1,000 to $3,000 for ductwork modifications.
All mechanical rough-in work must be inspected before you close walls. Schedule inspections promptly — waiting for an inspector can add days or weeks to your timeline.
After mechanical inspections pass, insulate exterior walls and any interior walls where sound isolation matters (bathrooms, bedrooms). Then hang, tape, mud, and sand drywall. This phase transforms the property from a construction site into something that looks like a house.
Typical costs:
This is the phase that transforms the property and determines buyer appeal. Work through finishes in this order to minimize damage to completed work:
Curb appeal sells houses. Buyers make judgments within seconds of pulling up to the property. Budget $2,000 to $5,000 for landscaping on a typical flip.
Walk the entire property with your contractor and create a punch list — a detailed list of every item that needs correction, completion, or touch-up. Common punch list items include paint touch-ups, caulking gaps, loose hardware, scuffed floors, dirty windows, and incomplete trim work.
Schedule final inspections with the building department for all permitted work. You will need passed inspections before you can sell the property.
| Category | Cosmetic ($15-25/sqft) | Medium ($25-50/sqft) | Full Gut ($50-100+/sqft) |
|---|---|---|---|
| Demolition | $1,000 | $3,000 | $5,000 |
| Structural | $0 | $3,000 | $15,000 |
| Plumbing | $500 | $4,000 | $10,000 |
| Electrical | $500 | $3,500 | $10,000 |
| HVAC | $0 | $5,000 | $10,000 |
| Insulation/Drywall | $500 | $5,000 | $12,000 |
| Flooring | $4,000 | $6,000 | $10,000 |
| Kitchen | $5,000 | $12,000 | $25,000 |
| Bathrooms (x2) | $3,000 | $8,000 | $18,000 |
| Paint | $3,500 | $4,500 | $6,000 |
| Fixtures/Hardware | $2,000 | $3,000 | $5,000 |
| Landscaping/Exterior | $2,000 | $4,000 | $8,000 |
| Permits | $500 | $1,500 | $3,000 |
| Dumpsters | $500 | $1,000 | $2,000 |
| Subtotal | $23,000 | $63,500 | $139,000 |
| Contingency (15%) | $3,450 | $9,525 | $20,850 |
| Total Budget | $26,450 | $73,025 | $159,850 |
Even the best scope of work and budget will fail without effective contractor management. Here are the principles that keep projects on time and on budget.
Set clear expectations upfront. Review the entire SOW with your contractor before work begins. Discuss the timeline, payment schedule, material specifications, and quality standards. Put everything in writing.
Visit the site regularly. Walk the property at least three times per week during active construction. Take photos and notes every visit. Compare progress to the timeline. Address issues immediately rather than hoping they resolve themselves.
Control payments. Structure payments around completed milestones, not calendar dates. A typical schedule: 10 percent at contract signing, 25 percent after demolition and rough-in, 25 percent after drywall and paint, 25 percent after finishes, and 15 percent at final punch list completion. Never pay for work that has not been completed and inspected.
Handle change orders formally. Any change to the original scope must be documented in a written change order that includes the description of the change, the cost impact, and the timeline impact. Both parties sign before work proceeds. Verbal change orders are a recipe for disputes.
Maintain professionalism. Your contractors are your most important business partners. Pay on time, communicate clearly, respect their expertise, and address problems calmly and directly. Good contractor relationships are one of the most valuable assets in the flipping business.
Renovation management is a skill that improves with every project. Your first rehab will have hiccups — that is inevitable. What matters is having a system: a detailed scope of work, competitive bids, proper permits, a disciplined payment schedule, and regular site visits. Follow this playbook, and your renovations will be predictable, professional, and profitable.